The installation of Teflon Wrist Pin Bushings is a must in high performance VW engines. Standard VW wrist pin clips are small and fragile. They are easily damaged during installation. A loose wrist pin clip can result in total engine failure. Teflon Wrist Pin Buttons are easy to install and will not break or wear out. You can install Teflon Wrist Pin Buttons in less time than stock clips. Teflon buttons are shipped in complete sets for one engine.